In order to have the post hidden you need to wrap the content with [HIDE*][/HIDE*] with out the * and then click on require thanks, likes or dislikes to see content.
[HIDE]I am almost certain you may have the permissions set up wrong, as DBT has had no other reports of this not woking, and as you can see it is working on here.[/HIDE]
I will not be able to do it tonight, but if you pm me a admin account and ftp info, just incase I need to reload files, I will have a look at it tomorrow when I get home from work.